CVE-2019-25041

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.2%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Unbound before 1.9.5 allows an assertion failure via a compressed name in dname_pkt_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
39
EG Risk 39/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability30% × 15%
EchelonGraph's default: CISA has not published Automatable for this CVE.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
2.2%
EPSS %ILE
81st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

April 27, 2021

Last Modified

November 21, 2024

References (3)

Vendor Advisories for CVE-2019-25041(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatunbound-0:1.7.3-12.el8_22022-02-22redhat
redhatunbound-0:1.7.3-15.el82021-05-18redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
unbound—
  • every version up to 1.9.6-1: fixed in 1.9.6-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
unbound—
  • every version up to 1.9.6-1: fixed in 1.9.6-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
unbound—
  • every version up to 1.9.6-1: fixed in 1.9.6-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
unbound—
  • every version up to 1.9.6-1: fixed in 1.9.6-1
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
unbound1.9—
  • every version up to 1.9.0-2+deb10u2~deb9u2: fixed in 1.9.0-2+deb10u2~deb9u2
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 26× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 88 of 151 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 12 repeat rows among the latest 100 are merged into the row they repeat. The 63 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-10 19:55 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  2. 2026-10-09 20:03 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  3. 2026-10-08 16:37 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  4. 2026-10-07 23:43 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  5. 2026-10-06 15:12 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  6. 2026-10-05 17:39 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  7. 2026-10-04 23:18 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  8. 2026-10-03 14:22 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  9. 2026-09-30 14:59 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  10. 2026-09-30 10:17 UTCEG score recompute
  11. 2026-09-28 13:46 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  12. 2026-09-27 13:40 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  13. 2026-09-26 15:54 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  14. 2026-09-26 03:12 UTCOSV refresh
  15. 2026-09-26 00:20 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  16. 2026-09-24 13:59 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  17. 2026-09-23 13:43 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  18. 2026-09-22 14:43 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  19. 2026-09-21 20:28 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  20. 2026-09-18 19:22 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  21. 2026-09-17 19:22 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  22. 2026-09-16 14:04 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  23. 2026-09-15 03:05 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  24. 2026-09-13 16:42 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  25. 2026-09-12 14:56 UTCEPSS rescoreEPSS 2.1% · 80th percentile
Show 63 more
  1. 2026-09-11 14:48 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  2. 2026-09-11 09:32 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  3. 2026-09-07 15:57 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  4. 2026-09-06 18:01 UTCOSV refresh
  5. 2026-09-06 13:44 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  6. 2026-09-05 15:24 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  7. 2026-09-04 13:56 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  8. 2026-09-02 14:07 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  9. 2026-09-01 03:32 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  10. 2026-08-30 19:13 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  11. 2026-08-30 01:18 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  12. 2026-08-28 21:36 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  13. 2026-08-27 14:21 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  14. 2026-08-26 14:42 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  15. 2026-08-25 13:45 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  16. 2026-08-24 14:11 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  17. 2026-08-21 23:45 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  18. 2026-08-20 22:51 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  19. 2026-08-20 04:04 UTCOSV refresh
  20. 2026-08-19 17:00 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  21. 2026-08-18 13:44 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  22. 2026-08-17 13:43 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  23. 2026-08-16 14:52 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  24. 2026-08-16 02:10 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  25. 2026-08-15 01:26 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  26. 2026-08-12 13:47 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  27. 2026-08-09 13:43 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  28. 2026-08-08 16:33 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  29. 2026-08-07 16:23 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  30. 2026-08-06 13:43 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  31. 2026-08-05 19:13 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  32. 2026-08-04 23:10 UTCOSV refresh
  33. 2026-08-04 15:05 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  34. 2026-08-02 02:23 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  35. 2026-08-01 04:12 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  36. 2026-07-30 16:24 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  37. 2026-07-30 01:27 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  38. 2026-07-28 15:32 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  39. 2026-07-26 14:51 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  40. 2026-07-25 14:14 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  41. 2026-07-24 14:14 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  42. 2026-07-23 14:15 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  43. 2026-07-23 01:44 UTCEG score recompute
  44. 2026-07-22 22:24 UTCEG score recompute
  45. 2026-07-22 14:05 UTCEPSS rescoreEPSS 2.1% · 80th percentile
  46. 2026-07-21 15:22 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  47. 2026-07-20 17:04 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  48. 2026-07-19 14:28 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  49. 2026-07-19 02:26 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  50. 2026-07-18 21:29 UTCOSV refresh
  51. 2026-07-18 10:01 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  52. 2026-07-16 16:59 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  53. 2026-07-15 16:55 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  54. 2026-07-13 22:27 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  55. 2026-07-13 06:10 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  56. 2026-07-12 05:43 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  57. 2026-07-11 08:24 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  58. 2026-07-09 19:06 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  59. 2026-07-08 15:11 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  60. 2026-07-07 13:43 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  61. 2026-07-06 16:25 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  62. 2026-07-05 02:27 UTCEPSS rescoreEPSS 2.1% · 79th percentile
  63. 2026-07-04 06:28 UTCEPSS rescoreEPSS 2.1% · 79th percentile

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2019-25041?
CVE-2019-25041 is a high vulnerability published on April 27, 2021. Unbound before 1.9.5 allows an assertion failure via a compressed name in dnamepktcopy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited
When was the CVE record for CVE-2019-25041 published?
The CVE record for CVE-2019-25041 was published on April 27, 2021. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2019-25041 actively exploited?
CVE-2019-25041 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.2% probability of exploitation in the next 30 days (81st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2019-25041?
CVE-2019-25041 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2019-25041?
A fix for CVE-2019-25041 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2019-25041 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-25041

Explore →

Is Your Infrastructure Affected by CVE-2019-25041?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs